Hakurei Shrine Reitaisai 4

The Hakurei Shrine Reitaisai (博麗神社例大祭) is an annual convention held in Japan to officially release demo and full versions of Touhou games. Fan works are also released at the event.
Reitaisai 4 was held in Sunshine City in Tokyo on May 20, 2007. Official website: http://www.reitaisai.com/